In the rigid frame shown in the picture, please determine: 1. Displacements and rotations of the nodes 2. Reaction forces 3. Element forces (and moments, if applicable). You'll need local nodal displacements for that. Please make sure to clearly show all derivations, including the individual element stiffness matrices and the global stiffness matrix (and the nodal displacement and force vectors, as need). Do not submit just a printout of Matlab code. 10 kN 3 m 3 m E = 210 GPa A = 1 x 10-2 m 1 = 2 10-4 m 5 kN m 10 kN 5 kNm 45% 3 3 m